Grease-cup.



J. MATTHEWS,

GREASE CUP.

APPLICATION FILED MAR, 18. 1915.

1,156,302. Patented Oct. 12, 1915.

Invenhar: ph. Mallhews,

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JOSEPH MATTHEWS, OF NEWBURYP-QRT, MASSACHUSETTS, ASSIGNGR 0F ONE-HALF TO WILLIAM H. HASTINGS, 0F MALDEN, MASSACHUSETTS. 1

GREASE-CUP.

Specification of Letters Patent.

Patented Oct. 12, 1915.

Application filed March 18, 1915. Serial No. 15,986.

Y '0 all whom it may concern:

Be it known that I, JOSEPH MATTHEWS, a citizen of the United States of America, and a resident of Newburyport, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Grease-Cups, of which the following is a specification.

This invention relates to grease cups, and has for its object the production of a cup of this character that is adapted for use either on a stationarypart or a rotatable member such as the hub of a pulley.

The invention consists in certain novel features of construction and arrangement of parts which will be fully understood by reference to the description of the drawings and to the claims hereinafter given.

0f the drawings: Figure 1 represents an elevation of the hub of a pulley with a grease cup embodying the principles of the present invention applied thereto. Fig. 2 represents a vertical section of the grease cup adjusted for use on-ia revoluble member. Fig. 3 represents a similar section of the same grease cup adjusted for use on a stationary part, and Fig. 4 represents a transverse section of the same, the cutting plane being on line 4-ion Fig. 3.

' Similar characters designate like parts throughout the several figures of the drawings.

In the drawings, 10 is the hub of a pulley or other revoluble member, the bearing surface of which it is desired to lubricate.

Threaded to an opening 11 through the hub is the tubular member 12, the outer end of which is closed as indicated at 13 in Figs.

2 and 3. A closing cap 14 is threaded or otherwise secured to the outer end of said tubular member 12, this'member being provided with a discharge opening 15 adjacent to the inner face of said closing cap 14. The opening 15 extends through the side wall of said tubular member 12 from the interior bore thereof to its periphery and said opening is adapted to be closed or partially closed by the sleeve or collar l6-threaded to said tubular member 1 2 and adjustable lengthwise thereon to regulate the discharge through said opening. Surrounding and freely movable lengthwise of said tubular member 12 is a cup-shaped member 17, the open end of which is adapted to be closed by the cap li. which loosely fits the interior thereof. v

The cup 17 is adapted to contain a heavy grease and as the bottom thereof is moved toward the cap l t the grease will be forced through the opening 15, the amount of grease forced through depending on the position of the sleeve 16. The grease passing through the opening 15 will enter the inte-' rior bore 18 of the member l2, and will pass therethrough or be forced therethrough to the surface to be lubricated. The inner end of the tubular member 12 is threaded to the hub 10 or other member-either revoluble or stationary which has a bearing surface which it is desired to lubricate. When the tubular member 12 is ixed in a stationary member the nut 19'threaded to saidtubular member is adjusted so that the cup 17 is moved outwardly until the cap 14-. is within the open end thereof. more grease is required, the nut 19 is adjusted to force the cup 17' farther outwardly, thereby causing the grease in said cup to be forced through the opening 15. It is obvious that by adjusting the sleeve 16 the amount of grease to be discharged may be predetermined, and

that when the sleeve 16 has been once adjusted it cannot be tampered with, inasmuch as it is inclosed within the cup 17. When the member 12 is secured to a revoluble hub 10, the nut 19 is moved farther away from the cap 14 into a position such as shown in Fig. 2, with the end thereof a short distance from the cap 14. As soon as the hub begins to revolve, the centrifugal action on the cup 17 will move it outwardly as indicated in dotted lines in 2, and the grease will be forced through the opening 15 in the manner hereinbefore described? The outward movement of the cup 17 is limited by the compression of the grease, and as this is usedthe cu will. move farther outwardly.

A steady and uniform supply of grease is thus automatically insured at all times. One great advantage of the cup is the fact that it may be used in any place either .on a stationary part or a movable member. The supply of grease may be predetermined, and when the regulating sleeve 16 has been once 'adjusted'it cannot be tampered with easily, or its position accidentally changed, owing to the fact that it is entirely inclosed and submerged in the grease. The nut 19 is of slightly greater diameter than the cup 17, thereby making it easy to adjust.

It is self-evident that the parts of the grease cup are reduced to a minimum, and are of such simple construction as to make it very inexpensive to manufacture.

It is believed that the operation and many advantages of this grease cup will be fully apparent from the foregoing description.

' Having thus described my invention, I claim:

1. In a device of the class described, the combination of a t bular member closed at its outer end and having an opening therethrough adjacent said closed end, said memher being of the same diameter throughout and having a helical thread from end to end; a cap secured to said closed end; a cup-shaped member surrounding said tubular member and movable relatively thereto and a member threaded to the inner end of said. tubular member.

2. In a device of the class described, the combination of a threaded tubular member closed at its outer end and having an opening therethrough adjacent said closed end; a sleeve on said tubular member and adjust able thereon to regulate the discharge through said opening; a cap secured to said closed end; and a cup-shaped member surrounding said tubular member and movable relatively thereto.

3. In a device of the class described, the combination of a threaded tubular member closed at its outer end and having an opening therethrough adjacent said closed end; a sleeve threaded to said tubular member and adjustable thereon to regulate the discharge through said opening; a cap secured to said closed end, and a cup-shaped member surrounding said tubular member and movable relatively thereto.

-l. In a device of the class described, the combination of a threaded tubular member closed at its outer end and having an opening therethrough adjacent said closed end; a cap secured to said closed end; and cupshaped member sur'ounding said tubular member and movable relatively thereto; and a nut on said tubular member adapted to control the movement in one direction of said cup-shaped member relatively to said cap.

5. In a device of the class described, the combination of a tubular member closed at its outer end and having a sice opening therein adjacent its closed end; a cap secured to the closed end thereof; a cupshaped member on said tubular member freely movably lengtlmisc thereof; and ad- Gopies of this patent may be obtained for five cents each, by addressing the justable means on said tubular member for limiting the inward movement of said cupshaped member.

6. In a device of the class described, the combination of a tubular member closed at its outer end and having a side opening therein adjacent its closed end; a cap secured to the closed end thereof; a cupshaped member on said tubular member freely movable lengthwise thereof; adjustable means on said tubular member for limiting the inward movement of said cupshaped member; and means for re ulating the discharge through said side opening.

7 In a device of the class described, the combination of a tubular member closed at its outer end and provided with a cap and an opening therein adjacent the inner face of said cap; a cup-shaped member surrounding said tubular member and movable lengthwise thereof; and means within said cup-shaped member for controlling the discharge through said opening.

8. In a device of the class described, the combination of a tubular member closed at its outer end and provided with a cap and an opening therein adjacent the inner face of said cap; a cup-shaped member surrounding said tubular member and movablelengthwise thereof; and means mounted on said tubular member within said cupshaped member for controlling the discharge through said opening.

9. In a device of the class described, the combination of a tubular member closed at its outer end and having a cap on its outer end and an opening therein adjacent the inner face of said cap; a cup-shaped member surrounding and freely movable lengthwise of said tubular member; and means mounted on the inner end of said tubular member for forcing said cup-shaped member toward said cap.

10. In a device of the class described, the combination of a tubular member closed at its outer end and having a cap on its outer end and an opening therein adjacent the inner face of said cap; a cup-shaped member surrounding and freely movable lengthwise of said tubular member; and means threaded to the inner end of said tubular member for forcing said cup-shaped member toward said cap.

Signed by me at Boston, Massachusetts, this 15th day of March, 1915.

JOSEPH MATTE-IE W S.

lVitn esses WILLIAM H. Has'rnves, ADA P. SMITH.

Commissioner of Patents.

Washington, D. C.

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